JPS61257775A - Abrasive/cleaning material - Google Patents
Abrasive/cleaning materialInfo
- Publication number
- JPS61257775A JPS61257775A JP9611285A JP9611285A JPS61257775A JP S61257775 A JPS61257775 A JP S61257775A JP 9611285 A JP9611285 A JP 9611285A JP 9611285 A JP9611285 A JP 9611285A JP S61257775 A JPS61257775 A JP S61257775A
- Authority
- JP
- Japan
- Prior art keywords
- abrasive
- abrasive material
- corrosion resistance
- grid
- cleaning material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Detergent Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は金属素地の錆取り、スケール落し、古い塗膜の
除去あるいは下地加工に使用さｎる研掃材に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an abrasive material used for removing rust, descaling, removing old paint films, or preparing bases on metal substrates.
（従来の技術）
船舶あるいは各種構造物の塗装に際し、前処理として研
掃材（金属ショッ）１−破砕し三角錐あるいは四角鋳状
の鉛角粒）ｔ−投射し、素地の錆取り、スケール落し、
古い塗膜の除去あるいは下地加工（梨地加工、艶消加工
）を行っている。(Prior art) When painting ships or various structures, as a pretreatment, an abrasive material (metal shot) (1-crushed triangular pyramid or rectangular cast lead square particles) is used to remove rust and scale from the substrate. ,
Removal of old paint film or base treatment (matte finish, matte finish).
従来、この研掃材として、鋳鉄系グリッド（３ｔｓＣ鋳
鉄）および鋼糸グリッド（１％Ｏ，α２５％Ｓ１系の鋼
）が使用されているが、次の点で問題がある。Conventionally, cast iron grids (3tsC cast iron) and steel thread grids (1% O, α25% S1 steel) have been used as this abrasive material, but they have the following problems.
（１） グリッドを投射した際、素地にグリッドが噛
み込み、この状態で塗装すると噛み込んだグリッドから
錆が浮き出て塗膜としての価値？著しく低下させる。(1) When the grid is projected, the grid gets stuck in the substrate, and if you paint in this state, the rust will come out from the stuck grid, and is it worth it as a coating film? Significantly lower.
（２） グリッドは海水又は風雨にさらさｎる友め錆
を生じ、これを投射しｔ際、素地に錆が付着し塗膜の性
状全書する。(2) When the grid is exposed to seawater or wind and rain, it will develop rust, and when it is projected, rust will adhere to the base material and the properties of the coating film will be completely affected.
（３） グリッドの耐摩耗性および靭性が低いため、
投射を繰ｖ返すと早期に鋭角粒のエツジが取れ、又破砕
しやすい。このため、グリッドの研掃能力が著しく低下
すると共にグリッドの寿命が短かい。(3) Due to the low wear resistance and toughness of the grid,
If the projection is repeated, the edges of the sharp grains will be removed quickly and they will be easily crushed. Therefore, the cleaning ability of the grid is significantly reduced and the life of the grid is shortened.
（発明が解決しようとする問題点）
本発明は、■海水あるいは清水で鋼びない、■耐摩耗性
および靭性に優ｎる、グリッド及びショットとして好適
な研掃材を提供しようとするものである。(Problems to be Solved by the Invention) The present invention aims to provide an abrasive material suitable for use as grids and shots, which: ■ does not rust in seawater or fresh water; and ■ has excellent wear resistance and toughness. be.
（問題点全解決するための手段）
すなわち、本発明はＣ量１．５〜五２ｗｔ％、 Ｓｉ量
α２〜１．２ ｗｔ％、 Ｏｒ量２２〜３６ ｗｔ％、
０ｕｆｉ（Ｌ５〜五Ｏｗｔチを含有すること″を特徴
とする研掃材である。(Means for solving all the problems) That is, the present invention has a carbon content of 1.5 to 52 wt%, a Si content of α2 to 1.2 wt%, an Or content of 22 to 36 wt%,
This is an abrasive material characterized by containing 0 ufi (L5 to 5 Owt).
以下、本発明研掃材の組成の限定理由を詳述する。The reasons for limiting the composition of the abrasive material of the present invention will be explained in detail below.
Ｃ：Ｏは研掃材の硬さく研掃能力）を確保する九めの重
要な成分である。焼入後の研掃材の便さ（ｉ−Ｈｖ７０
０以上とするためには本成分系の場合、Ｃｉ−は１．５
ｗｔ％以上必要であり、−万、０量がＳ ２ ｗｔ％
以上となると耐食性が著しく低゛下する几め、限足範１
１ｔ−１，５〜五２ ｗｔ％とじた。C:O is the ninth important component that ensures the hardness and cleaning ability of the abrasive. Ease of use of abrasive material after quenching (i-Hv70
In order to make it 0 or more, in the case of this component system, Ci- should be 1.5
wt% or more is required, and -10,000,0 amount is S 2 wt%
If the temperature exceeds 1, the corrosion resistance will be significantly reduced.
1t-1,5 to 52 wt%.
Ｓｉ：８１は溶湯の流動性（研掃材を製造する際、まず
溶融金属から金属ショットＴｈ製造するが、この時流動
性がないと球状ショットが得らｎない）ｔ″確保る九め
重要な成分であるが、本成分系の場合、この流動性を得
る次めには、α２ ｗｔ％以上必要である。−万、焼入
後のグリッド硬さ’１Ｆ１ｖ７００以上とするｔめには
Ｓｌは１．２Ｗ匈以下とする必要があり、限定範囲をα
２〜１．２ ｗｔ％とし友。Si:81 is the fluidity of the molten metal (when manufacturing abrasive materials, metal shots are first produced from molten metal, but if there is no fluidity, it is impossible to obtain spherical shots) 9th important point is to ensure t''. However, in the case of this component system, in order to obtain this fluidity, α2 wt% or more is required. must be less than 1.2W, and the limited range is α
2 to 1.2 wt% Toshitomo.
Ｏｒ： Ｏｒは海水あるいは清水に対する耐食性を得る
ため不可欠な成分であると共に研掃材の靭性を得る几め
に重要である。ｃｒｔ′ｆ：変え耐食性を評価し九結果
、本成分系の場合、目標とする耐食性を得るｔめにはＯ
ｒは２２ ｗｔ％以上添加する必要があることを見い出
した。Or: Or is an essential component for obtaining corrosion resistance against seawater or fresh water, and is also important for obtaining toughness of the abrasive material. crt'f: After evaluating the corrosion resistance, the results showed that in the case of this component system, O to obtain the target corrosion resistance.
It has been found that r needs to be added in an amount of 22 wt% or more.
Ｏｒ添加量を増大させｎは耐食性は同上するが、Ｏｒが
５６ ｗｔ％以上となると焼入後の研掃材硬さはＨｖ７
００以下となるため、限蝋範囲を２２〜３６ ｗｔ％と
Ｌ７ｔ。Ｃｒ１ｉがこの範囲でａｔが１．５〜Ｘ ２
ｗｔ％の範囲であｎば、焼入後の研掃材の硬さおよび靭
性は充分満足できるものとなる。By increasing the amount of Or added, the corrosion resistance is the same as above, but when Or is 56 wt% or more, the hardness of the abrasive material after quenching is Hv7.
00 or less, the limiting wax range is 22 to 36 wt% and L7t. When Cr1i is in this range, at is 1.5 to X 2
If the content is within the wt% range, the hardness and toughness of the abrasive material after quenching will be sufficiently satisfactory.
Ｃｕ：Ｏｕは海水ならびに清水に対する耐食性向上のた
め重要な成分であり・本成分系の場合、耐食性向上の効
果金得るには０．５ ｗｔ％以上添加する必要がある。Cu:Ou is an important component for improving corrosion resistance against seawater and fresh water; in the case of this component system, it is necessary to add 0.5 wt% or more to obtain the effect of improving corrosion resistance.
−万、焼入後の研掃材硬さをＨｖ７００以上とするため
にはＯｕの含有量ｔ−ｘ。- 10,000, In order to make the hardness of the abrasive material after quenching Hv700 or more, the O content t-x.
ｗｔチ以下に押える必要があるため限定範囲をｌ１５〜
五口ｗｔ％とした。Since it is necessary to keep it below wtchi, the limited range is 115 ~
It was set as 5 wt%.
なお、耐食性の同上を図る交めＮｉ、Ｍｏ 等を添加
することも有効である。It is also effective to add Ni, Mo, etc. to improve the corrosion resistance.
（具体例）
第１表に示す各種研掃材を作成し、耐食性の評価、研掃
能力の評価ならびに寿命の評価を行った。その結果を第
２表に示す。(Specific Examples) Various abrasive materials shown in Table 1 were prepared, and their corrosion resistance, cleaning ability, and lifespan were evaluated. The results are shown in Table 2.
なお、従来研掃材は市販さｎているものを用い、本発明
研掃材および比較研掃材は溶融金属よりまず球径２〜５
＃Ｉ＃Ｉφの金属ショットとしたのち、熱処理（１００
０〜１１００℃に５０分加熱後、水焼入ｎ）Ｉ、、そｔ
′Ｌｔ−破砕し研掃材としたものである。It should be noted that conventional abrasive materials were commercially available, and the abrasive materials of the present invention and comparative abrasive materials had a spherical diameter of 2 to 5 mm compared to molten metal.
After making a metal shot of #I#Iφ, heat treatment (100
After heating at 0 to 1100℃ for 50 minutes, water quenching
'Lt- It is crushed and used as an abrasive material.
また評価方法は次のとおりである。The evaluation method is as follows.
■耐食性の評価・・・研掃材を海水又は清水中に２４時
間浸漬しためち研掃材の発錆状況より次のように評価し
九〇
■研掃能力の評価・・・８８４１ｔ一対象材とし、研掃
材を同一条件（研掃材投射量、圧力０時間等）で投射し
、１３Ｓ４１材の減量（研削され九量）で評価し九〇
■寿命の評価・・・８８４１材に繰返し研掃材を投射し
、研掃材径が５００μｍ以下の′１！Ｌ量が総重量の約
４０チとなる投射回数で評価し几。■Evaluation of corrosion resistance: The abrasive material was immersed in seawater or clean water for 24 hours, and the rusting status of the abrasive material was evaluated as follows: 90 ■Evaluation of cleaning ability: 8841t - subject The abrasive material was projected under the same conditions (abrasive material projection amount, pressure 0 hours, etc.), and the weight loss of 13S41 material (9 amounts after grinding) was evaluated. By repeatedly projecting the abrasive material, the diameter of the abrasive material is 500 μm or less.'1! Evaluate based on the number of shots when the L amount is approximately 40 inches of the total weight.
従ってこの投射回数が多い程寿命が優れることとなる。Therefore, the greater the number of projections, the better the life.
第１表、第２表より本発明の研掃材は従来のグリッドと
比較し耐食性に優れ（塗膜性能の向上）、ｔｘ研掃能力
および寿命について著しく優れていることは明白である
。From Tables 1 and 2, it is clear that the abrasive material of the present invention has excellent corrosion resistance (improved coating film performance) and is significantly superior in Tx cleaning ability and service life compared to conventional grids.
Claims (1)
％Ｃｒ量２２〜３６ｗｔ％、Ｃｕ量０．５〜３．０ｗｔ
％を含有することを特徴とする研掃材。C content 1.5-3.2wt%, Si content 0.2-1.2wt
%Cr amount 22-36wt%, Cu amount 0.5-3.0wt
An abrasive material characterized by containing %.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9611285A JPS61257775A (en) | 1985-05-08 | 1985-05-08 | Abrasive/cleaning material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9611285A JPS61257775A (en) | 1985-05-08 | 1985-05-08 | Abrasive/cleaning material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61257775A true JPS61257775A (en) | 1986-11-15 |
Family
ID=14156305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9611285A Pending JPS61257775A (en) | 1985-05-08 | 1985-05-08 | Abrasive/cleaning material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61257775A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999051399A1 (en) * | 1998-04-06 | 1999-10-14 | Vulkan Strahltechnik Gmbh | Rust-resistant abrasive |
| WO2001053022A1 (en) * | 2000-01-22 | 2001-07-26 | Vulkan Strahltechnik Gmbh | Method for producing angular, stainless shot-blasting abrasives based on an fe-cr-c alloy |
| US6797080B2 (en) * | 2001-07-09 | 2004-09-28 | Showa Denko Kabushiki Kaisha | Method for producing spraying material |
-
1985
- 1985-05-08 JP JP9611285A patent/JPS61257775A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999051399A1 (en) * | 1998-04-06 | 1999-10-14 | Vulkan Strahltechnik Gmbh | Rust-resistant abrasive |
| WO2001053022A1 (en) * | 2000-01-22 | 2001-07-26 | Vulkan Strahltechnik Gmbh | Method for producing angular, stainless shot-blasting abrasives based on an fe-cr-c alloy |
| JP2003524690A (en) * | 2000-01-22 | 2003-08-19 | ヴルカーン シュトラールテヒニーク ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method for producing rust-free shot blasting abrasive with corners based on Fe-Cr-C alloy |
| AU769520B2 (en) * | 2000-01-22 | 2004-01-29 | Vulkan Strahltechnik Gmbh | Method for producing angular, stainless shot-blasting abrasives based on an FE-CR-C alloy |
| US6764557B2 (en) | 2000-01-22 | 2004-07-20 | Vulcan Strahltechnik Gmbh | Method for producing angular, stainless shot-blasting abrasives based on an fe-cr-c alloy |
| KR100790097B1 (en) * | 2000-01-22 | 2007-12-31 | 불칸 슈트랄테히닉 게엠베하 | METHOD FOR PRODUCING ANGULAR, STAINLESS SHOT-BLASTING ABRASIVES BASED ON AN Fe-Cr-C ALLOY |
| US6797080B2 (en) * | 2001-07-09 | 2004-09-28 | Showa Denko Kabushiki Kaisha | Method for producing spraying material |
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